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# Get Started

Bring Your Own Channel for Messaging and Bring Your Own Channel for Contact Center as a Service (CCaaS) integrate external messaging services with Salesforce. The Interaction Service API helps you shape and extend the Bring Your Own Channel experience for your reps.

To learn more about Bring Your Own Channel for Messaging and Bring Your Own Channel for CCaaS, visit our [learning map](https://help.salesforce.com/s/articleView?id=service.byoc_byoccaas_intro.htm) in Salesforce Help.

## Before You Begin

Before you can start sending API calls, you must prepare your environment.

- [Enable Bring Your Own Channel for Messaging](https://developer.salesforce.com/docs/service/messaging-partner/guide/messaging-partner-setup.html) or [enable Bring Your Own Channel for CCaaS](https://developer.salesforce.com/docs/service/messaging-byoc-ccaas/guide/enable-messaging-byoc-ccaas.html).
- Generate the access token for the Interaction Service API. When you enable Bring Your Own Channel for Messaging or Bring Your Own Channel for CCaaS, during the process, you'll also generate an access token, which you or your customer will use as the bearer token to make requests to the Interaction Service APIs. If Bring Your Own Channel for Messaging or Bring Your Own Channel for CCaaS is already enabled and you don't have an access token, create one by following the steps in the [Authorization](https://developer.salesforce.com/docs/service/interaction-service-api/guide/authorization.md) page.

## Next Steps

After you prepare your environment, you're ready to start making requests to the Interaction Service API. See the [Interaction Service API Reference](https://developer.salesforce.com/docs/service/interaction-service-api/references/interaction-service-reference/api-interaction-api.html) section for a list of available Interaction Service APIs.

**See Also**

- _Bring Your Own Channel for Messaging:_ [Enable Bring Your Own Channel for Messaging](https://developer.salesforce.com/docs/service/messaging-partner/guide/messaging-partner-setup.html)
- _Bring Your Own Channel for Contact Center as a Service:_ [Enable Bring Your Own Channel for CCaaS](https://developer.salesforce.com/docs/service/messaging-byoc-ccaas/guide/enable-messaging-byoc-ccaas.html)